1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec75ad954b2055907b60e2a52a1656991e5416b35a87f717eb031a78c10b2c1c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ee58b694-5ea6-4b9c-b15d-2810f6187f1d.json and https://artists.proofprofile.net/proofs/artist/ee58b694-5ea6-4b9c-b15d-2810f6187f1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0705fb3adf5e77d2c25c89c2cb002392226bf1415d269c1376cf845eabe6c32d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES91830634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2008f91218e48711d0fb748146fbae2ff4cea470caa6188e075423008e2d37. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5751808166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8abc896d39a7e976d1e5db78b831414c1beb22f887804d483f4327251b0504c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32041874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64def8d3a09d91e45a18f54fe30124b2b395aac3cc030d3bdbaaa4873cf3ade8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ4JJ1950115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ac30f16ced0d755261b42bc209e5737d5d22ce8d75e2c2dc8121b98f041d5f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC1995700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12c9e3b5cd2a53080e94c424c4afb576bfdbbce272e2bb9f062ab9c9c9ad196. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA71974804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d121e3c6545980a281b38b3bab9cfdcc7ea7db692105a27658393049023085. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN31943864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba28db69e3f4215bf1d655c9cbbb646708ce411bfa39c40dd1fe3b47aa89fc8. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2327026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c80db6a585faaf4dbdf40e1d70f757eeb28c15e87555ebf10483e05ea8c77c3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB22357914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935f034b41629c019f0108fe9b5354c638290ae8385cda4b3f3e14ea3c9ff6b9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWY2323109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c94a0d81e40bf0793ec6d0a30696afdb8e18b31052bd4b7b372aab74e8d985. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB52333225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb099390165bce6e38ea0553dd579f178ebdf9503f590502cdf6b0f596f119d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92295123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99fc488d0915692aec1730c6e80df916b8c183c58e151b6f7719357440de3166. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES92295122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed7f68a600a9de01a0bc2a8c170b93ed06d57e0313c0991a5f4853e1a2a6034. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:26:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN52258344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f131acdbc682a4955925d910c2fea0191270a14cd620c3c4ca6369462ca41eb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2289493.
Let Me In Frame - Former Hero Club Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4785dea17449c852bbde683b29d7550bcb4944431552af78016a461f77907d57. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b1e8e7a849c4d35c1f73369d267cc82298d576da5a0a0302087bbba3a2918a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a08547426b088e3044f434404a999ab5a13c6172a92b4fd92e15bbffe8dbe72. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb837c51625c9d38ad2127af23c53d2d62985a9a38999d8bc334d4f5f3459a55e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeedf2a508bb2112f5dc8b7b31fb62d31627fb4fbb30f6ef613131a645b9c10f. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2471847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3448db6401643f6a29f44a9a8b2c9b960da85977b29544351251afe8361fac5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC2305061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b13116cc0a16094edb572b77a803d4221da2f9196977a76489038643ec417e. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYZ2395513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88e8828426a4bb8a455e4b2a1827b85a75018c11c6698549336401a40faf280. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP52103871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c296c7f0269466c807537f13a110a2a7a9174ffc5eb6276e36c6cbfea098806. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d48b924d65cad0fb972ae032c92311830f5871f59a0d1dc3d3296e28a18dcf. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acc809d4d2de680ed4157cc3dc789d6eec0c25fc940fe4e8856b3b579c26c0b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72053164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0897ef3efece0ee0743d57fc6056d189e2763c3383a3abc5f69f67a05502fdd9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ21918389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba945f775bd280e12e3f1114c9a7412a39bb036c6f26ab35e3418adca988a9c2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU1830657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb971e1f4ff732d4c997ca50c8b281236931c4a57c0d3ffcb68d3df86abc4f95. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLRD51632402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce326698b66d3bece541ee0aff90c234a7fdd4d470338bd81d6d9d2774492bd0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2151143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464f6261d9624840b715e3232ecdc392a90e4b0d6871226c78a662c518283236. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZF8N1998717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259d2581042bf833483de124781f470f53569e0577a12cfcdeecfd06991e64e0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CA5KR2152193.